Incorrect field name in STD.File.PromoteSuperFileList

The documentation says the first parameter (the list of superfiles) is called 'superfiles', however if you call it with that it errors and says it should be 'supernames'. I've checked the standard library for 6.0.6 and that still says 'superfiles', so unless the parameter name has changed in the code (I don't have a 6.x instance to test on) the documentation needs that updating.